SOUND WAVES
The next-door neighbour listens to Radio 4 all day. Often, I do, too. I'm sometimes working upstairs in the back room, which backs onto next door's garden and kitchen. I can hear their radio - usually broadcasting the same programme I'm listening to. I've been struck by the delay in the sound of their radio reaching me - next door's radio seems two whole seconds behind mine yet they are merely a few metres away. I couldn't figure this out; it's not like the delay of one hundred feet, such as the time taken to travel from the top to the bottom of a cliff. I've realised it's likely to be that their digital radio is not synchronised with my analogue model. So now the delay seems to have a prosaic explanation, after all.
The next-door neighbour listens to Radio 4 all day. Often, I do, too. I'm sometimes working upstairs in the back room, which backs onto next door's garden and kitchen. I can hear their radio - usually broadcasting the same programme I'm listening to. I've been struck by the delay in the sound of their radio reaching me - next door's radio seems two whole seconds behind mine yet they are merely a few metres away. I couldn't figure this out; it's not like the delay of one hundred feet, such as the time taken to travel from the top to the bottom of a cliff. I've realised it's likely to be that their digital radio is not synchronised with my analogue model. So now the delay seems to have a prosaic explanation, after all.
